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试验表明,在稻飞虱中等及中等以下发生年份使用45%为马拉硫磷防治,建议施用剂量为120 m l/667m2(810g.a.i/hm2),按667m2用药量对水40L均匀喷雾。在偏重发生或大发生年份不宜单独使用,应配合其它药剂使用。
The test showed that 45% of the planthoppers were used for malathion control in the medium and below years. The recommended dosage was 120 m l / 667m2 (810g.a.i / hm2), and sprayed evenly on the water 40L according to the dosage of 667m2. In the emphasis on occurrence or occurrence of the year should not be used alone, should be used in conjunction with other agents.